Multiferroic Behavior Associated with an Order−Disorder Hydrogen Bonding Transition in Metal−Organic Frameworks (MOFs) with the Perovskite ABX3Architecture

2009 ◽  
Vol 131 (38) ◽  
pp. 13625-13627 ◽  
Author(s):  
Prashant Jain ◽  
Vasanth Ramachandran ◽  
Ronald J. Clark ◽  
Hai Dong Zhou ◽  
Brian H. Toby ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Metal Organic Frameworks ◽  
Metal Organic

Anion Coordination in Metal−Organic Frameworks Functionalized with Urea Hydrogen-Bonding Groups

2006 ◽  
Vol 6 (2) ◽  
pp. 555-563 ◽  
Author(s):  
Radu Custelcean ◽  
Bruce A. Moyer ◽  
Vyacheslav S. Bryantsev ◽  
Benjamin P. Hay
Keyword(s):  
Hydrogen Bonding ◽  
Metal Organic Frameworks ◽  
Anion Coordination ◽  
Metal Organic

scholarly journals Two metal–organic frameworks based on Sr2+ and 1,2,4,5-tetrakis(4-carboxyphenyl)benzene linkers

2021 ◽  
Vol 77 (12) ◽  
Author(s):  
Muhammad Usman ◽  
Lydia Ogebule ◽  
Raúl Castañeda ◽  
Evgenii Oskolkov ◽  
Tatiana Timofeeva
Keyword(s):  
Hydrogen Bonding ◽  
Single Crystal ◽  
Crystal Structures ◽  
Structural Control ◽  
Metal Organic Frameworks ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic ◽  
Solvent Systems ◽  
Semiconductor Properties

Two structurally different metal–organic frameworks based on Sr2+ ions and 1,2,4,5-tetrakis(4-carboxyphenyl)benzene linkers have been synthesized solvothermally in different solvent systems and studied with single-crystal X-ray diffraction technique. These are poly[[μ12-4,4′,4′′,4′′′-(benzene-1,2,4,5-tetrayl)tetrabenzoato](dimethylformamide)distrontium(II)], [Sr2(C34H18O8)(C3H7NO)2] n , and poly[tetraaqua{μ2-4,4′-[4,5-bis(4-carboxyphenyl)benzene-1,2-diyl]dibenzoato}tristrontium(II)], [Sr3(C34H20O8)2(H2O)4]. The differences are noted between the crystal structures and coordination modes of these two MOFs, which are responsible for their semiconductor properties, where structural control over the bandgap is desirable. Hydrogen bonding is present in only one of the compounds, suggesting it has a slightly higher structural stability.

scholarly journals Removal of Acid Orange 7 from Aqueous Solution by Metal-Organic Frameworks

Crystals ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 17 ◽  
Author(s):  
Sungwon Yoon ◽  
James Calvo ◽  
Monica So
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonding ◽  
Adsorption Capacity ◽  
Metal Clusters ◽  
Metal Organic Frameworks ◽  
Acid Orange 7 ◽  
Acid Orange ◽  
Zeta Potentials ◽  
Metal Organic ◽  
Capacity Data

We investigated the removal of a harmful anionic dye, acid orange 7 (AO7), from aqueous solution using metal-organic frameworks (MOFs). We prepared four different MOFs (ZIF-8, ZIF-67, UiO-66, UiO-66-NH2) by solvothermal reactions and then tested their adsorption of AO7. Infrared spectra and adsorption capacity data confirmed the removal of AO7 from aqueous solution. The factors we investigated affecting adsorption capacity include variation of the organic linkers and metal clusters of the MOFs. Our results suggest that the hydrogen bonding, π–π interactions, and zeta potentials facilitate the removal of AO7 from water. Of the four MOFs examined, ZIF-67 exhibited the highest adsorption capacity of AO7 and can be regenerated easily.

Piecewise 3D Printing of Crystallographic Data for Post-Printing Construction

2019 ◽  
Author(s):  
Matthew Brown ◽  
David Hartling ◽  
Hamel N. Tailor ◽  
Ken Van Wieren ◽  
Gary Houghton ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
3D Printing ◽  
Small Molecules ◽  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Crystallographic Data ◽  
Metal Organic ◽  
Hydrogen Bonding Networks ◽  
Time Reduction ◽  
Size Limits

A method of 3D printing complex or challenging structures by breaking them into parts with connectors, printing each part separately, and then assembling the structure post-printing has been developed. This has advantages such as multicoloured printing, framework optimization and reduction, print time reduction, and can be used to bypass print tray size limits. This method is particularly applicable to extended structures such as coordination polymers, metal-organic frameworks, and hydrogen bonding networks, but examples where it can be used to simplify the printing of small molecules are also shown.

Adsorption of Pyridine over Amino-Functionalized Metal–Organic Frameworks: Attraction via Hydrogen Bonding versus Base–Base Repulsion

2014 ◽  
Vol 118 (36) ◽  
pp. 21049-21056 ◽  
Author(s):  
Zubair Hasan ◽  
Minman Tong ◽  
Beom K. Jung ◽  
Imteaz Ahmed ◽  
Chongli Zhong ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Metal Organic Frameworks ◽  
Metal Organic
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